diff -r 03678acbfda3 -r 49b75287c30b server/src/app/Libraries/Mappers/CocoonCollectionRdfMapper.php
--- a/server/src/app/Libraries/Mappers/CocoonCollectionRdfMapper.php	Sat Mar 26 00:24:34 2016 +0100
+++ b/server/src/app/Libraries/Mappers/CocoonCollectionRdfMapper.php	Fri Apr 08 17:50:49 2016 +0200
@@ -97,7 +97,7 @@
             ['http://purl.org/dc/elements/1.1/language', null],
             ['http://purl.org/dc/terms/accessRights', 'propertyTrimMap'],
             ['http://purl.org/dc/terms/extent', null],
-            ['http://purl.org/dc/terms/isPartOf', null],
+            ['http://purl.org/dc/terms/isPartOf', 'propertyCollectionMap'],
             ['http://www.language-archives.org/OLAC/1.1/annotator', 'propertyOlacRoleMap'],
             ['http://www.language-archives.org/OLAC/1.1/author', 'propertyOlacRoleMap'],
             ['http://www.language-archives.org/OLAC/1.1/compiler', 'propertyOlacRoleMap'],